نتایج جستجو برای: au nano dendrites

تعداد نتایج: 138680  

2004
Yan Wang Jeffrey Bokor Arthur Lee

Writing process patterns directly on a substrate with small liquid droplets generated by Drop-On-Demand (DOD) inkjet devices offers a low cost, non-contact, low temperature, flexible, and data driven patterning approach. Existing inkjet printheads have a limited number of inkjet devices, which generate droplets on the scale of tens of microns. In our research, we have developed a monolithic ink...

2013
Sawanta S. Mali Hyungjin Kim Chang Su Shim Pramod S. Patil Jin Hyeok Kim Chang Kook Hong

Tailoring the nano-morphology and nano-architecture of titanium dioxide (TiO₂) is the most important task in the third generation solar cells (Dye sensitized solar cells/Quantum dot sensitized solar cells) (DSSCs/QDSSCs). In this article we present complete study of surfactant free synthesis of TiO₂ nanostructures by a simple and promising hydrothermal route. The plethora of nanostructures like...

2017
Swati Rawat Suzanne A. Apodaca Wenjuan Tan Jose R. Peralta-Videa Jorge L. Gardea-Torresdey

Abstract The effects of engineered nanoparticles (ENPs) in living organisms are described in a myriad of articles. Most of the literature on this topic is devoted to plants of different gender and species. Studies from laboratories and greenhouse facilities highlight effects on chlorophyll production, plant growth, stress enzyme activities, phytotoxicity, cytotoxicity, and genotoxicity. With fe...

2016
Liping Zhang Ping Cui Hongbin Yang Jiazang Chen Fangxing Xiao Yuanyuan Guo Ye Liu Weina Zhang Fengwei Huo Bin Liu

Ti-based metal-organic frameworks (MOFs) are demonstrated as promising photosensitizers for photoelectrochemical (PEC) water splitting. Photocurrents of TiO2 nano wire photoelectrodes can be improved under visible light through sensitization with aminated Ti-based MOFs. As a host, other sensitizers or catalysts such as Au nanoparticles can be incorporated into the MOF layer thus further improvi...

2014
Zhe Ren Francesca Mastropietro Anton Davydok Simon Langlais Marie-Ingrid Richard Jean-Jacques Furter Olivier Thomas Maxime Dupraz Marc Verdier Guillaume Beutier Peter Boesecke Thomas W. Cornelius

A compact scanning force microscope has been developed for in situ combination with nanofocused X-ray diffraction techniques at third-generation synchrotron beamlines. Its capabilities are demonstrated on Au nano-islands grown on a sapphire substrate. The new in situ device allows for in situ imaging the sample topography and the crystallinity by recording simultaneously an atomic force microsc...

Journal: :Optics letters 2007
Xiaoyu Miao Lih Y Lin

A new approach is proposed for manipulating and rotating micro- or nano-objects by using polarized laser light with low intensity. The polarized light excites resonant dipoles on a cap-shaped Au nanoparticle array, which generates a highly nonuniform radiation field that induces large dielectrophoresis force on dielectric objects. The orientation control of the objects is realized by adjusting ...

Journal: :The journal of physical chemistry letters 2013
Hyun You Kim Graeme Henkelman

DFT+U calculations of CO oxidation by Au12 nanoclusters supported on a stepped-CeO2(111) surface show that lattice oxygen at the step edge oxidizes CO bound to Au NCs by the Mars-van Krevelen (M-vK) mechanism. We found that CO2 desorption determines the rate of CO oxidation, and the vacancy formation energy is a reactivity descriptor for CO oxidation. Our results suggest that the M-vK mechanism...

2016
James B. Otis Hong Zong Alina Kotylar Anna Yin Somnath Bhattacharjee Han Wang Baker James R. Su He Wang

Although many breast and lung cancers overexpress human epidermal growth factor receptor-2 (HER-2), no methods currently exist for effective and early detection of HER-2-positive cancers. To address this issue, we designed and synthesized dendrimer-based novel nano-imaging agents that contain gold nanoparticles (AuNPs) and gadolinium (Gd), conjugated with the humanized anti-HER-2 antibody (Herc...

2016
Mahsa Nazar Ali Reza Talebi Mohammad Hosseini Sharifabad Abolghasem Abbasi Arezoo Khoradmehr Amir Hossein Danafar

BACKGROUND The particles in the range of 1-100 nm are called nanoparticles. Gold nanoparticle is one of the most important metal nanoparticles with wide usage. OBJECTIVE This study investigated the effects of gold nanoparticles on sperm parameters and chromatin structure in mice. MATERIALS AND METHODS In this experimental study, 72 male bulb-c mice were divided into 9 groups including: 4 Sh...

Journal: :Nanoscale 2013
Yi-Hsin Chien Ming-Fong Tsai Vijayakumar Shanmugam Kripasindhu Sardar Cheng-Liang Huang Chen-Sheng Yeh

Based on the difference in the redox potentials between two metal species, the galvanic replacement reaction is known to create an irreversible process to generate hollow nanostructures in a wide range of shapes. In the context of galvanic replacement reaction, continuing etching leads to the general collapse of the hollow structures because of the excess amount of oxidizing agent. We demonstra...

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